Adjustable tool-hitch for tractors.



leraar cerros.

ADJUSTABLE TOOL-HTC-H EGR TRACTORS.

Specification of Letters Patent.

' Patented Nov. 18, 1913.

Application filed April 2-1, 1913. Serial No. 762,613.-

To all whom it may concern I Be it known that I, HARRY W. LEAvI'r'r, acitizen of the United States/of America, a resident of Paris, Monroecounty, souri, have inventedy certain new and useful Improvements inAdjustable Tool- Hitches for Tractors, of which the following is aspecification.

My invention relates to improvements in adjustable toolhtches fortractors, and the object of my improvement is to supply means forindependently adjustably tilting connected tools or implements drawn bya tractor, so that either tool may be' tilted independently of theother, transversely of the tractor, and in an opposite direction to thedirection of tilting or rocking of the other tool.. This objectv I haveaccomplished vby the means which are hereinafter described and claimed,and which are illustrated in the accompanying drawings, in which:

Figure 1 is a left-hand/ side elevation of a tractor with a pair ofrigidly-connected plows drawn thereby, and having intermediate operativeconnections adapted for use in differentially tilting said plows,transversely. Fig. 2 is a rear elevation of the mechanisms'shown in saidFig. l.

Similar numerals of reference denote corresponding parts throughout theseveral views.

I have shown a tractor having a horizontal frame 1 `mounted on carryingand traction-wheels. Operatively connected to said tractor-frame isshown a pair of transversely-spaced plows 4 and 5, whose mainbeams 2 and3 respectively are rigidly connected by a tiltable cross-bar 6, as alsoby means of an arched-bar 14. A transverse rock-bar 20 is mounted inbearings 21 on said frame 1, and 'a rigid rearwardly-directed arm 15 issecured to said rock-bar with its rear end loosely and pivotallyconnected to a loop formed in the upper part of the arch-bar 14. Ahand-lever 17 has its lower end xed on said rock-bar and has a movabledetent of the usual kind adapted to releasablyengage` teeth on anadjacent fixed rack-segment 25. By said means the plows may/besimultaneously raised or lowered to an advsted distance.

The numerals 8 and 24 respectively denote depending slidewa ys fixed tothe frame 1 on its opposite sides, being each a vertically slotted bodyadapted to slidably receive an adjacent end of the tiltable bar 6therethrough for restricted vertical mo.- tion slidably therein.

The numerals 13 and 19 denote respectively hand-levers fulcrumed onopposite sides of the Vframe 1 and movable past fixed raclcsegments 12and 22, with whose teeth their movable detents may rcleasably engage.The said hand-levers are in form bell-crank levers, and their lowerforwardlydirected arms 10 are at their fcrwardvends pivoted to the upperends of the linkingbodies 7 and 23 respectively which are at their lowerends pivotally connected to the ends of said tiltable bar 6.

W'ith the last-mentioned independent means, either plow may beindependently transversely Vtilted to be lifted or lowered while rocked,to a height adjusted by the proper engagement of the appropriatehandlcver with its abutting rack-segment, as shown best in Fig. 2. Thetilting of each plow is in `a direction opposite to the direction oftilting of the other, and without appreciably changing'the `position ofsuch oth er plow relative to the tractor or the surface' of the ground.The two plows are shown a little to the right-'hand of the mediallongitudinal line of said tractor 1, in order to be located practicallyand operatively near the right-hand traction-wheel, and on this accountthe connect-ions of the plow-beams to the tiltable bar 6 are such ,as tovary the respective lengths of leverage upon thevplows to adjust theositions of the plows suitably for such a re ative position. When it isdesired to bodily elevate or lower both plows simultaneously, thehandlever 17 alone is employed for that purpose.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is:

.A tdsl-hitch for a tractor, comprising a pair of spaced plows, locatedside by side transversely of a tractor and rigidly connected, said plowshaving their beams connected to a transversely-tiltable bar, said barhaving its ends vertically and slidably mounted in the frame of saidtractor, and means for transversely tilting said bar and y plows,comprising hand-levers fulcrumecl on opposite sides of thetractor-frame, means for holding said levers releasably in adjustedpositions, and linking means between the said levers and opposite endsof said tiltable bar, adapted to act. with the said hand-levers Wheneither level' is actuated Witnesses:

E. B. PARKHURST, G. C. KENNEDY.

